how to change this code? - red crucible 2

already tried many times to change this code to the further spread without success,
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this was the old code:

scan: 02 F9 7B 0D 00 04 28 02 00 00 0A 3A
replace: 27 F9 7B 0D 00 04 28 02 00 00 0A 3A

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and this is the new code I could find

scan: 00 7E F9 0D 00 04 28 02 00 00 0A 3A
replace: 27 7E F9 0D 00 04 28 27 00 00 0A 3A

When I make the switch to the same value that is 27 in the spread works only the crosshair disappears.